Latch



May s, 192s. 1,669,020

o. L. PRgME ET AL LATCH Filed Dec. 50. 1927 QQ/M/UMQ/ l Patented May 8, 1928.

UNITED, *STAT-Es 1,669,020 PATENT omet.

ORTON Li PRIME AND ALFRED LAUKHUFF, OFfMILWAUKEE, WISCONSIN, ASSIGNOBS TO THE PRIME MFG. CO., OF MILWAUKEE/WISCONSIN. A

, LATCH.

, Application mea Deeember'ao, 1927. serial No. 243,556.

` This invention relates `to latches.

Objects of this invention are to provide a novel form of latch'such, for instance,

a window latch, which is ofverysimple and substantial construction, which will draw the two portions of the window', sash together,V

which will fasten itself in place against dislodgment, and which `is easy to operate.

Further objects are Ito provide a latch lwhich may be'very simply andcheaply manufactured and which is so constructed that ing it in closed position;

Figure 2 is a sectional view `on the line 2-2 of Figure 3 showing the latch open;

Figure 3 is a sectional view drawn to an enlarged scale on the line 3-3 kof Figure 2; Figure 4 is a sectional view on the line 4-4 of Figure 3.

Referring to the drawings, it will be seen that the latch comprises two base members indicated by the reference characters 1 and 2 which are adapted; for attachment to the two sashes 3 and 4, respectively,as shown in Figures 1 and 2. Thel base member 2 is provided with a headed stud 5. these base members are triangularand apertured in their corners for the reception of the attaching screws, as indicated. They may be stamped from sheet metal and may be provided with downturned flanges, as developed in Figure3` It is an easy matter to countersink the bases for the tapered heads of the attaching screws 6. The base member l carries a pivot pin 7 which Iis provided with an enlarged head and which pivotally supports a bottom washer Sand a top washer 9. The top washer is provided with a recess 10 which surrounds the enlarged head of the pin 7 and a compression spring 11 loosely .surrounds the pin and bears at one end against the head of the pin and at the other end against the upper washer 9. The upper washer is provided with a pair of manipulating ears 12, as shown in Figures 1 and 4.

The Vwashers receive between them a latching arm 13 which is provided with a hooklike end 14 adapted to engage the headed stud 5 in lockedposition, as shown in Fig` ure l.

Preferably,

This latching arm is provided with a curved slot 15l (see Figure 2) through which the pivot pin`7 projects.

The washers 9 and 8 are joined by meansv of an eccentrically mounted p in 16 (see Figure 3) and Vsuch pin 16 `passes through an aperture in the arm 13. j Preferably,it is received in a socket ory apertureformed' in the washer 9, such socket being yclosed at itsA upper end. This member 9 may have a pair of apertures, as indicated by the reference character 17in Figure. 4, so that the device may ber'eadily changed during assembly toca right or lefthandlatch lby placing the pin in one or the other of the apertures 17 and by turning the latching'arm 13 over. The bottom washer 8 may be provided with a ring of apertures 17 as shown in Figures l and y The base 1 is provided with a stop 18 (see Figures land 2) against which the latching arm is adapted to contact when it is swung to yextreme open position. Obviously, the

ybase 1 vmay be turned 120 *degrees when the device is assembled for a left hand latch, to

'properly position the stop 18.

.washers causes the J,arm to move inwardly vas the pin moves towards and ast dead center and thus the hook-like en 14 is drawn into binding engagement with the stud 5. Uponreleasing motion or rotation of the Washers in a clockwise direction, the latching arm 13 is Vfirst moved outwardly and thereafter rocked into the position shown in Figure 2. Y

It will be seen therefore that a very simple type of latch has been provided, which may be very cheaply manufactured, which is easy to install, and which secure in operation. .Although the invention has been described in considerable detail, such description is intended as illustrative rather than limit- Vis to be determined as claimed.

We claim:

l. A latch comprising a pair of plates, one of said plates having a headed stud, a a pan' of washers pivotally supported troni `theother plate, a latch arin mounted between said washers and having a slot formed therein, a pivot pin carried by said last mentioned plate and passing through said washers and said latch arm, and a pin extending through said latch arm and enterA ing said washers, said latch arm having a hooik-shaped end adapted to engage said stu 2.A A latch comprising a pail` of plates, one lof saidplates having a headed stud, a pair of washers pivotally supported from the other plate, a latch arm mounted between said washers and having a slot formed therein, a pivot pin carried by said last mentioned plate and passing through said washers and said latch arm, and a pin'extending through said latch arm and entering said washers, said latch arm having a hook-shaped end adapted to engage said stud, said pivot pin being headed, and a spring surrounding said pin and bearing against said head and the upper of said washers.

3. A latch comprising a pair of plates, one of said plates having a headed stud, a pail` of washers pivotally supported from the other plate, a latch arm mounted between said washers and having a slot formed therein, a pivot pin carried by said last mentioned plate and passing through lsaid washers and said latch arm, and a pin extending through said latch arin and entering said washers, said latch arm having a hook-shaped end adapted to engage said stud, and a pair oi diainetrically spaced ears projecting upwardly from said upper washer.

In testimony that we claim the foregd ing we have hereunto set .our hands al: Milwaukee, in the county of Milwaukee and State of Wisconsin.

ORTON L. PRIME. ALFRED LAUKHUFF. 

